Inserted-tooth milling-saw.



PATBNTED OCT. 1, 1997.

3- 8. HUNTER. IHSEBTED TOOTH MILLING SAW.

APILICLTIOI I'll-ED RAY I, 1508.

Ag/ a 7 g M 1::

cutting edge a of the tooth and the juncture boithc front oi the tooth and tho edge or pr'riphory of bindc 2 will, when LXLCIiilUll inward, pass to tho roar of tho blade cuntor, such a. lino being indit-ntvtl ut X-Z\', Fig. 1. At the sum; time, a line Pxtontiing irom tho jum'tnrc oi tho baclr oi the tooth with the plant: of tho pcriph'ery oi the blade will, when extended inward, pass in front oi the blade center without encroaching upon the soclcctw-nfined portion at the tooth. This line is indicated at Y-Y, Fig. 1.

-With the tooth-sockets thus disposed, the stmins from the teeth are tmnsmitted in a backward or inward direction into the body of tho biado, as distinguished from strain linen which in oockots oi diticrcnt formation would run of! or outward iron: the biademdge or pcriphory close to the teeth. With the strains distributed throughout the blade-body instead of being contlnothin the main, to the outer portion of the blade, the blade is rendered more nerviceablo and ices liable to iracturc. Also, when constructed as dEbCill'iGd, the strains operate to contract rather than stretch the teethconfining cavities, and thus materially augment the holding or clamping pressure.

i. in (milling now, u blade having a nericn of toothlockcil, teeth for the sockets, a reinforcing device in each socket lglimt which the back of the tooth therein hours. the blade hnrimz no opening in front of Each tooth socket, and I securing device fitting anid opening and operntin'; to (are: the front \nli of the socket against the tooth nod cinmp the latter and the reinforcing duicc.

2. in n milling saw, a circular blade harlot: a series of nrcunie iooih-mrireta extending inward from ll! periphery with the conclve of the ouch-ta facing, the direction of motion or the saw, teeth fitting the sockets and projecting therefrom, the nrcuatc sockets being so dispoaoi that a line from the juncture of the rear side of the tooth and the blade periphery will, when projected inward. puss in front of the blade center without extending over the tooth.

3. in l milling saw, I blade having tooth-sockets. the outer portion of the rear side of each socket being eninr ed, n tooth fitting the inner unenlnrged portion of the socket mil projecting lherrl'rnm. and l tooth-reinforcement tilting th FlN'klt onlurgt-mcnt anti hem-inc ugalunt the rcnr Price or the inn!-.

4. In n milling; sow. u hlnile inn-int: tootlrnuvlmtn, the lllil uldc 0! each mn-lu'i being: enlnr zuii with the wall of tho cnlnrgumnnt run-mi nonvoxly, :1 tooth in the anti, Iillil n 'onihreinimcvrnwrt rni'rv-Npondhn: in allow to and iiit ln: the olx krtenlnumnwnt anti uguinnt which the hack of the tooth ivnrl.

5. in n milling now, it hindc lnn'ln ooth-uockctn, teeth and rclnhrclng dot-i on tin-rein, i iili reinforcing: device inn-in: fixed positi n in the nocket with mi'una (or maininlnin: it in that prm'lilon, and mrninn for contracting the socket walls for clamping the tooth and reinforcing device.

o. in n milling now, u bimie having tooth-sockets, teeth and reinforcing derives therein. each nnckut and reinforcing device interim-king in pi'cvcnt movement of mid device longitudinally of the tooth, nnrl moans for contractin: the market walls for clamping the tooth and reinforcing device.

7. in n milling saw, u blndc having its edge receaatl inwardly from one [.103 to the other to form a toothsm-ket, the rear portion of the uocket being enlarged, l tooth within the ROCkGi, u tooth-reinforcement fitting tho mwket-eniurgcuiont and ngnlnnt which the buck edge of the tooth bear-v means [or securing the tooth, the engaging odccn ot the tooth-reinforcement and the rail 0! tho nocket-enim'zzpmr'nt h'nimr n koy-opening. and a. key in unit! opening 8. in a milling saw, a circular blade having a series of curved tooth-sockets, rnr'xed teeth complementary with and fitting the ockers and projecting therefrom, the convex edge-i of the tooth fit-tin; ihe direction of motion oi ilublade. tine curvmuro 0! each edge being: such that when in upright position a line interact-tin: the cutting extremity of the tooth and the jnncturr oi their-out edge oi the tooth with the hiatfrwdgv will when extended inward pans to the rear of tho \ilfllli renior. nnd a line from the rear edge of the iuuiii in the piano or tile llliiilO-(dflt will when projected inward pans in iron! oi the bluducenter without extending un-r tin: lootli.

in tcrtlmmu' wlwrvui 1 mil: my sliznntnre in preaence of two witnezscs.

HARRY S. HUNTER.

Wltneweu J. .i. Xizsnrr.

Aux. 8. 1i.\uo.\'. 

